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133 lines
4.1 KiB
133 lines
4.1 KiB
/*--------------------------------------------------------------------------- |
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wpng - simple PNG-writing program writepng.h |
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--------------------------------------------------------------------------- |
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Copyright (c) 1998-2007 Greg Roelofs. All rights reserved. |
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This software is provided "as is," without warranty of any kind, |
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express or implied. In no event shall the author or contributors |
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be held liable for any damages arising in any way from the use of |
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this software. |
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The contents of this file are DUAL-LICENSED. You may modify and/or |
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redistribute this software according to the terms of one of the |
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following two licenses (at your option): |
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LICENSE 1 ("BSD-like with advertising clause"): |
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Permission is granted to anyone to use this software for any purpose, |
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including commercial applications, and to alter it and redistribute |
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it freely, subject to the following restrictions: |
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1. Redistributions of source code must retain the above copyright |
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notice, disclaimer, and this list of conditions. |
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2. Redistributions in binary form must reproduce the above copyright |
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notice, disclaimer, and this list of conditions in the documenta- |
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tion and/or other materials provided with the distribution. |
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3. All advertising materials mentioning features or use of this |
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software must display the following acknowledgment: |
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This product includes software developed by Greg Roelofs |
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and contributors for the book, "PNG: The Definitive Guide," |
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published by O'Reilly and Associates. |
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LICENSE 2 (GNU GPL v2 or later): |
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This program is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation; either version 2 of the License, or |
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(at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with this program; if not, write to the Free Software Foundation, |
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Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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---------------------------------------------------------------------------*/ |
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#ifndef TRUE |
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# define TRUE 1 |
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# define FALSE 0 |
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#endif |
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#ifndef MAX |
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# define MAX(a,b) ((a) > (b)? (a) : (b)) |
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# define MIN(a,b) ((a) < (b)? (a) : (b)) |
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#endif |
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#ifdef DEBUG |
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# define Trace(x) {fprintf x ; fflush(stderr); fflush(stdout);} |
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#else |
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# define Trace(x) ; |
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#endif |
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#define TEXT_TITLE 0x01 |
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#define TEXT_AUTHOR 0x02 |
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#define TEXT_DESC 0x04 |
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#define TEXT_COPY 0x08 |
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#define TEXT_EMAIL 0x10 |
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#define TEXT_URL 0x20 |
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#define TEXT_TITLE_OFFSET 0 |
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#define TEXT_AUTHOR_OFFSET 72 |
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#define TEXT_COPY_OFFSET (2*72) |
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#define TEXT_EMAIL_OFFSET (3*72) |
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#define TEXT_URL_OFFSET (4*72) |
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#define TEXT_DESC_OFFSET (5*72) |
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typedef unsigned char uch; |
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typedef unsigned short ush; |
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typedef unsigned long ulg; |
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typedef struct _mainprog_info { |
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double gamma; |
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long width; |
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long height; |
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time_t modtime; |
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FILE *infile; |
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FILE *outfile; |
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void *png_ptr; |
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void *info_ptr; |
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uch *image_data; |
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uch **row_pointers; |
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char *title; |
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char *author; |
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char *desc; |
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char *copyright; |
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char *email; |
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char *url; |
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int filter; /* command-line-filter flag, not PNG row filter! */ |
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int pnmtype; |
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int sample_depth; |
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int interlaced; |
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int have_bg; |
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int have_time; |
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int have_text; |
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jmp_buf jmpbuf; |
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uch bg_red; |
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uch bg_green; |
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uch bg_blue; |
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} mainprog_info; |
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/* prototypes for public functions in writepng.c */ |
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void writepng_version_info(void); |
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int writepng_init(mainprog_info *mainprog_ptr); |
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int writepng_encode_image(mainprog_info *mainprog_ptr); |
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int writepng_encode_row(mainprog_info *mainprog_ptr); |
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int writepng_encode_finish(mainprog_info *mainprog_ptr); |
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void writepng_cleanup(mainprog_info *mainprog_ptr);
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